login - Password change does not work using GUI

I have been trying to change my password now for a while, and every single time I get an error. Here's what I have tried so far:

• passwd in terminal - I get a message saying the password has been changed successfully, but when I have to use it anywhere else, to login or to authenticate a change the new password doesn't work; I have to use the old one.


• System > Users and Groups - When I use this to change the password, the password change dialog box grays out after I enter the new password and remains that way. I can close the window, but the password doesn't get changed.

Any idea what could be wrong or how to solve this? Might have to file a bug in Launchpad otherwise. FYI, I'm using 10.10 Netbook Edition.

Update: Included answer to how I solved problem. However, the problem with being unable to update passwords using the GUI 'Users and Groups' remains. The dialog box goes gray and password remains unchanged. Any idea why this could be happening / anyone else facing this?

I figured out what I was doing incorrectly when trying to update using passwd - I typed in sudo passwd instead of just passwd. The latter is for changing user password, which I wanted to do. However, the problem with being unable to update passwords using the GUI 'Users and Groups' remains.